Good question. foreach my $line(<INFILE>){} reads the entire file into an anonymous array, aliasing each element in turn to $line. while (my $line = <INFILE>){} reads the file one line at a time, storing each in turn in $line.

The foreach version must allocate more memory than the while loop, which is a bit slower. The tradeoff is up to you.

Update: ++chromatic points out that foreach iterates over a list, not an anonymous array.

After Compline,
Zaxo

In reply to Re: foreach question by Zaxo
in thread foreach question by glwtta

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